This could be a syntax error in the makefile, or it could be due to relying on bash-specific features when you have a /bin/sh that isn’t bash. Try running make SHELL=/bin/bash target or make SHELL=/bin/ksh target ; if that doesn’t work, you need to fix your makefile.
Does make work on Linux?
The make command for Linux is a very useful utility in the automation of software development and performing tasks in a Linux environment. It simply reads a special file, which is called a Makefile and this file describes how one’s program is compiled and linked with another file or another program action.
How do I install make in Linux?
Read the README file and other applicable docs.
Run xmkmf -a, or the INSTALL or configure script.
Check the Makefile .
If necessary, run make clean, make Makefiles, make includes, and make depend.
Run make.
Check file permissions.
If necessary, run make install.
What is $@ and in Makefile?
$@ is the file name of the target of the rule. $< is the name of the first prerequisite. $? is the name of all the prerequisites that are newer than the target, with spaces between them. If the target does not exist, all prerequisites will be included.
What is $$@ in makefile?
$$@ The $$@ macro stands for the full target name of the current target (which is $@). It has meaning only on the dependency line in a makefile. Thus, in the following: cat dd: $$@.c.
What is $$ in Linux?
$$ The process ID or PID number of the currently active shell is provided by the $$. This behaves differently depending on whether you use this particular Bash variable from the Linux command line or within the shell script. This is because $$ generates the process ID of the active bash shell.
What is ~/ in Linux?
The tilde (~) is a Linux “shortcut” to denote a user’s home directory. Thus tilde slash (~/) is the beginning of a path to a file or directory below the user’s home directory. For example, for user01, file /home/user01/test. file can also be denoted by ~/test. file (when referenced by the logged in user01).
What is CMake vs make?
Generate a Build System. One of the main differences between CMake and Make is that CMake creates output that can be used by build systems like Make. This means that CMake acts as a generator for other build systems and it’s not responsible for the actual compilation.
What is a .mk file?
The common.mk include file is where you put the traditional makefile options, such as compiler options. This is usually the only file you need to modify to add customizations to the build process.
How to know if make is installed?
If the make binary is located at ‘/usr/bin/make’, the installation was successful.
Are apt and apt-get the same?
The difference between apt and apt-get is not just that apt is a newer version of apt-get. The apt command was designed as a more user-friendly alternative to apt-get, combining the functionality of multiple package management tools for user convenience.
Why is the sudo command not found?
sudo command not found error means sudo package is not installed or PATH variable does not include sudo’s directory. To fix this bash error, you can install sudo in linux using apt install sudo command (apt package manager for Debian-based distributions).
What is $1 in makefile?
In a shell script, there’d be no difference. But this is a Makefile, so these references are to make variables. $@ is the name of the rule target ( apple here), while $1 is a variable named 1 —nothing special. Bash does not see these variable references; they’re handled by make.
What is the difference between () and (/)?
The slash (/) and backslash () are often confused, as both are used in many computers operating systems. However, the slash is primarily used for path navigation, while the backslash usually serves as an escape character.
What is ~$ in file name?
From Wikipedia: “The tilde symbol is used to prefix hidden temporary files that are created when a document is opened in Windows. For example, when you open a Word document called “Document1. doc,” a file called “~$cument1. doc” is created in the same directory.
What is $() in make?
Make supports creating basic functions. You “define” the function just by creating a variable, but use the parameters $(0) , $(1) , etc. You then call the function with the special call builtin function. The syntax is $(call variable,param,param) . $(0) is the variable, while $(1) , $(2) , etc.
What is $#, $?, $@, etc. in Linux shell script?
$# : The number of arguments passed to the script. $* : All the arguments passed to the script, as a single string. $@ : All the arguments passed to the script, as separate strings. $? : The exit status of the last command executed.
What is \ used for?
Double Backslashes (\) Two backslashes are used as a prefix to a server name (hostname) on the local network.
What does $* do?
The $* variable represents each command-line argument as a single string. The arguments are separated by spaces and aren’t joined together.
What is $_ in Linux?
$_ (underscore): This variable holds the last argument of the previous command. It’s particularly useful when you want to reuse the last argument of a command without having to retype it. $- (dash): This variable holds the current set of options in your current shell.
How much does $$$ mean?
$ – Budget retailers, thrift stores (under $25 average purchase) $$ – Standard retail, mid-market ($25-75 average purchase) $$$ – Upscale retail, boutiques ($75-200 average purchase) $$$$ – Luxury retail (over $200 average purchase)
What is $! in Linux?
The $! variable is a special shell variable that stores the PID of the most recently executed background process. A background process, also known as a background job, allows us to continue using the command line interface for other tasks. There are different ways to start a background job in Linux.
What does 2 >& mean?
The file descriptor for these files are 0, 1, and 2, respectively. So 2>&1 simply says redirect standard error to standard output. & means whatever follows is a file descriptor, not a filename. In short, by using this command you are telling your program not to shout while executing.
What is ./’ in Linux?
The dot ( . ) represents the current directory in the filesystem. The dot-dot ( .. ) represents one level above the current directory. The forward slash ( / ) represents the “root” of the filesystem. (Every directory/file in the Linux filesystem is nested under the root / directory.)
Is Make only for C++?
make reads a plain text file, usually named Makefile , for a description of the program files and how to compile them. Note: the examples below are C++ examples, but everything applies to plain C programs, too.